Bone detection method and device and bone densitometer

A technology of bone detection and bone densitometer, applied in the field of bone detection method, device, bone densitometer and readable storage medium, can solve the problems of unstable measurement results and the like

Inactive Publication Date: 2018-12-18
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a bone detection method, device, bone densitometer and readable storage medium to solve the problem of unstable measurement results of bone density detected by ultrasonic longitudinal waves in the prior art

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  • Bone detection method and device and bone densitometer
  • Bone detection method and device and bone densitometer
  • Bone detection method and device and bone densitometer

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0027] At present, the commonly used ultrasonic probe is to make the longitudinal wave obliquely incident on the interface, and realize the transverse wave flaw detection through waveform conversion, such as Figure 4 As shown, when the incident angle is between the first and second critical angles, the longitudinal wave is totally reflected, and only the she...

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Abstract

The invention discloses a bone detection method and device, a bone densitometer and a readable storage medium. The method comprises the following steps of: controlling an ultrasonic probe to emit a shear wave to a specified bone; receiving an echo of the ultrasonic probe; acquiring thickness of cancellous bone and / or cortical bone of the specified bone according to the echo. The shear wave emittedby the ultrasonic probe does not cause serious energy loss due to waveform conversion when being cast into the bone, which means that the shear wave with higher energy can go into the bone, the signal-to-noise ratio of the echo is improved, and the measurement result of the bone is more accurate. In addition, the propagation velocity of the shear wave in bone is lower than that of a longitudinalwave and is about half of that of the longitudinal wave. As a result, the wavelength of an echo signal of the shear wave is shorter than that of the longitudinal wave of the same frequency, namely, the resolution of the echo of the shear wave is higher, and the judgment of an intraosseous interface is more accurate. To sum up, the accuracy and stability of bone density measurement can be effectively ensured by using shear wave for bone detection.

Description

technical field [0001] The invention relates to the technical field of medical instruments for orthopedic surgery, in particular to a bone detection method and device, a bone densitometer and a readable storage medium. Background technique [0002] Ultrasound has the advantages of non-destructive, real-time, cheap, no ionizing radiation, and portability, so it has great potential in bone diagnosis. Ultrasonic bone densitometers that have appeared on the market today are based on the principle of measuring bone density by measuring the two parameters of sound velocity and broadband ultrasonic attenuation. The current commercial ultrasonic bone densitometer is basically based on the ultrasonic transmission method, such as figure 1 As shown, this measurement device requires two probes that are sent and received, and the bone is required to be located between the two probes. When placing pedicle screws, it is necessary to extend the probe into the figure 2 The shown narrow (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B8/08
CPCA61B8/0875A61B8/4444A61B8/48
Inventor 江挺益焦阳邵维维李培洋崔崤峣
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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